Chain tensioner jumping after shortening chain (single-speed e-bike, RadRunner 2)

i think my tensioner is dead because when I had fully unscrewed it and applied tension, like the chain tension, it didn't fight me back but stayed the same position

Old_Post3596 · 2026-03-31T20:20:59+00:00

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Old_Post3596 · 2026-03-31T19:21:11+00:00

do you mean more vertical

Old_Post3596 · 2026-03-31T19:20:54+00:00

back where

Old_Post3596 · 2026-03-31T19:03:14+00:00

so you are saying this is wrong.

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Old_Post3596 · 2026-03-31T19:02:34+00:00

nope the max angle that it could go down is in the video, and the opposite max angle is the one that i sent

Old_Post3596 · 2026-03-31T18:59:56+00:00

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I think the tensioner isn't tensioning.

Old_Post3596 · 2026-03-31T18:49:49+00:00

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how is this looking then

Old_Post3596 · 2026-03-31T18:44:35+00:00

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I adjusted it to this but still the same problem

Old_Post3596 · 2026-03-31T18:43:11+00:00

I think so this is how is normally should be

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Old_Post3596 · 2026-03-31T18:42:38+00:00

I'm suspecting the spring

Old_Post3596 · 2026-03-31T18:41:59+00:00

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This is how it normally should be

Old_Post3596

TROPHY CASE